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M21.80

Billable

Other specified acquired deformities of unspecified limb

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

An acquired deformity or abnormal shape of an unspecified limb that developed after birth, not due to a congenital condition.

Coding Tips

  • Use this code only when the specific limb cannot be determined; always attempt to identify the affected limb for more specific coding
  • Document the cause of deformity (trauma, disease, surgery) in the medical record to support medical necessity

Code Hierarchy

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